Wearable electronic apparatus, data analyzer, and travel record control method

• US 9,372,096 B2
• Filed: 08/06/2013
• Issued: 06/21/2016
• Est. Priority Date: 08/07/2012
• Status: Active Grant

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Otsuka, Junichi, Shimoda, Kazunori, Maezawa, Hidekazu
• Primary Examiner(s): Khatib, Rami
• Assistant Examiner(s): MERLINO, DAVID P
• Application Number:
  US13/960,768
• Publication Number:
  US 20140046588A1
• Time in Patent Office: 1,050 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: A61B 5/681 Wristwatch-type devices
• CPC Class Codes: A63B 24/0062 Monitoring athletic performances, e.g. for determining the work of a user on an exercise apparatus, the completed jogging or cycling distance
• CPC Class Codes: G01C 22/00 Measuring distance traversed on the ground by vehicles, persons, animals or other moving solid bodies, e.g. using odometers, using pedometers
• CPC Class Codes: G01C 22/006 Pedometers
• CPC Class Codes: G01S 19/19 Sporting applications
• CPC Class Codes: G06Q 10/0639 Performance analysis of employees; Performance analysis of enterprise or organisation operations

Abstract

An electronic apparatus refers to location measurement information measured in the past at each time when the latest location measurement information is output from a location measurement module with a predetermined measurement period, if measurement accuracy is good and it is regarded that a direction change has been made, determines the latest location measurement information as saving “necessary” and stores the information. If the measurement accuracy is no good or it is regarded that a positioning point shown by the latest location measurement information is an intermediate point during linear traveling, the latest location measurement information is not saved. Therefore, a data size to be saved is made smaller than that in related art and draining of a battery taken for writing of data is reduced.

Claims

1. A wearable electronic apparatus comprising:

a memory;

a location measurement module for receiving one or more signals from a location measurement system; and

a processor coupled to the memory and the location measurement module, wherein the processor is adapted to;

measure a location with a predetermined period based on the one or more received signals;

compute an accumulated travel distance based on the measured location;

determine whether the measured location is accurate or not;

determine whether the measured location is necessary or not with reference to a previous measured location,

when the measured location is accurate and necessary, determine that the measured location is to be saved in the memory;

when the measured location is not accurate or not necessary, determine the measured location is not to be saved in the memory;

determine whether the measured location corresponds to a section measurement point or not,

control the memory to store the measured location when the measured location is determined to be saved;

control the memory to store a dummy data instead of the measured location when the measured location corresponds to the section measurement point and determined not to be saved, and

control the memory to output data stored in the memory corresponding to the measured location to an external device.

2. The apparatus according to claim 1, wherein the processor is further adapted to determine that the measured location is to be saved when a direction change condition showing that a movement direction has changed based on the measured location is satisfied.

3. The apparatus according to claim 2, wherein the processor is further adapted to measure the location based on satellite signals and to measure at least the movement direction based on Doppler of the satellite signals, and

to determine whether or not the direction change condition is satisfied based on the movement direction.

4. The apparatus according to claim 3, wherein the processor is further adapted to determine that the measured location is not to be saved when the movement direction and a travel direction based on the measured location and the previous measured location do not satisfy a predetermined approximate condition.

5. The apparatus according to claim 1, wherein the processor is further adapted to control the memory to store the accumulated travel distance after a longer time interval than the predetermined period in a temporal sequence, and

control the memory to output data of one or more accumulated travel distances stored in the memory to the external device.

6. The apparatus according to claim 1, wherein the processor is further adapted to,

when the measured location corresponds to the section measurement point, control the memory to store a lapse time from a start of computation of the accumulated travel distance, or a time taken for traveling from a previous section measurement point to the section measurement point, in correspondence with the measured location or the dummy data;

and

control the memory to output data of the lapse time or the time taken for traveling stored in the memory to the external device.

7. The apparatus according to claim 1, wherein the section measurement point comprises a lap point.

8. A travel record control method executed by an electronic apparatus worn on a body, comprising:

receiving one or more signals from a location measurement system;

measuring a location with a predetermined period based on the one or more received signals;

computing an accumulated travel distance based on the measured location;

determining whether the measured location is accurate or not;

determining whether the measured location is necessary or not with reference to a previous measured location;

when the measured location is accurate and necessary, determine Caving the measured location is to be saved in a memory;

when the measured location is not accurate or not necessary, determining the measured location is not to be saved in the memory;

determining whether the measured location corresponds to a section measurement point or not;

controlling the memory to store the measured location when the measured location is determined to be saved in the memory;

control the memory unit to store a dummy data instead of the measured location data when the measured location corresponds to the section measurement point and determined not to be saved; and

controlling the memory to output data corresponding to the measured location to an external device.